Nematodes are the most numerous multicellular animals on earth. There are about 20,000 species of nematodes and most of them are parasitic or free living.They are very important decomposers in the enviroment. We know nematodes as roundworms.
Nemotodes have a tube within a tube body plan and are pseudoceolomates. Their germ tissues are partially seperated by coelom.
Nematodes have bilateral symmetry and are not vertebrates.
Interesting facts about nematodes
- their mouth has three to six lips
- nematodes are parasitic on humans, some species we know are hookworms, pinworms, and whipworms. Nematodes can be parasitic on pets and plants also. Heartworms are nematodes that inhabit the heart and arteries of dogs and cats and they cause Heatworm disease.
These are roundworms. I'm sure we all wish we could have these in our bodies. Roundworms can damage our tissues and even blind us.
Roundworms
These are heartworms.
Heartworms
Nemo ate the nematode and now the nematode eats him! Sorry!!!!!!!!!!!!!
Nemo
Question: Which of the nine phyla are pseudoceolomates?
a. mollusks
b. flatworms
c. nematodes
d. chordates
NEMATODES
Nematodes are the most numerous multicellular animals on earth. There are about 20,000 species of nematodes and most of them are parasitic or free living.They are very important decomposers in the enviroment. We know nematodes as roundworms.
Nemotodes have a tube within a tube body plan and are pseudoceolomates. Their germ tissues are partially seperated by coelom.
Nematodes have bilateral symmetry and are not vertebrates.
Interesting facts about nematodes
- their mouth has three to six lips
- nematodes are parasitic on humans, some species we know are hookworms, pinworms, and whipworms. Nematodes can be parasitic on pets and plants also. Heartworms are nematodes that inhabit the heart and arteries of dogs and cats and they cause Heatworm disease.
These are roundworms. I'm sure we all wish we could have these in our bodies. Roundworms can damage our tissues and even blind us.
These are heartworms.
Nemo ate the nematode and now the nematode eats him! Sorry!!!!!!!!!!!!!
Question: Which of the nine phyla are pseudoceolomates?
a. mollusks
b. flatworms
c. nematodes
d. chordates